EP2306485B1 - Current interrupting device and secondary battery including current interrupting device - Google Patents

Current interrupting device and secondary battery including current interrupting device Download PDF

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Publication number
EP2306485B1
EP2306485B1 EP10251639.0A EP10251639A EP2306485B1 EP 2306485 B1 EP2306485 B1 EP 2306485B1 EP 10251639 A EP10251639 A EP 10251639A EP 2306485 B1 EP2306485 B1 EP 2306485B1
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EP
European Patent Office
Prior art keywords
terminals
fuse
thickness
interrupting device
current interrupting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP10251639.0A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2306485A1 (en
Inventor
Kyounghan Kim
Moonhong Han
Junsun Yong
Ji Seongdae
Shim Cheolwoo
Kwangchun Kim
Park Jeongman
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Samsung SDI Co Ltd
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Samsung SDI Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Samsung SDI Co Ltd filed Critical Samsung SDI Co Ltd
Publication of EP2306485A1 publication Critical patent/EP2306485A1/en
Application granted granted Critical
Publication of EP2306485B1 publication Critical patent/EP2306485B1/en
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/572—Means for preventing undesired use or discharge
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00—Thermally-actuated switches
    • H01H37/74—Switches in which only the opening movement or only the closing movement of a contact is effected by heating or cooling
    • H01H37/76—Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material
    • H01H37/761—Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material with a fusible element forming part of the switched circuit
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/058—Construction or manufacture
    • H01M10/0587—Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/4235—Safety or regulating additives or arrangements in electrodes, separators or electrolyte
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/531—Electrode connections inside a battery casing
    • H01M50/538—Connection of several leads or tabs of wound or folded electrode stacks
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/572—Means for preventing undesired use or discharge
    • H01M50/574—Devices or arrangements for the interruption of current
    • H01M50/581—Devices or arrangements for the interruption of current in response to temperature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/58—Electric connections to or between contacts; Terminals
    • H01H2001/5877—Electric connections to or between contacts; Terminals with provisions for direct mounting on a battery pole
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H39/00—Switching devices actuated by an explosion produced within the device and initiated by an electric current
    • H01H2039/008—Switching devices actuated by an explosion produced within the device and initiated by an electric current using the switch for a battery cutoff
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/0241—Structural association of a fuse and another component or apparatus
    • H01H2085/025—Structural association with a binding post of a storage battery
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/572—Means for preventing undesired use or discharge
    • H01M50/574—Devices or arrangements for the interruption of current
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the invention relates to a current interrupting device that senses temperature variations to interrupt a current, and a secondary battery including such a current interrupting device.
  • second batteries can include nickelcadmium batteries, nickel-hydrogen batteries, nickel-zinc batteries, and lithium secondary batteries.
  • the lithium secondary batteries may be rechargeable and adapted for miniaturization and high capacity.
  • the lithium secondary batteries typically have high operation voltages and high energy density per unit weight, the lithium secondary batteries are widely used in high-end electronic appliances.
  • Such a secondary battery may be formed by disposing a generating unit including a positive electrode plate, a negative electrode plate, and a separator, that is an electrode assembly in a metal can, and by injecting electrolyte in the can and sealing the can.
  • the secondary battery sealed with the can may include an electrode terminal insulated from the can and disposed on the upper side, so that the electrode terminal functions as a pole, and the can functions as the opposite pole.
  • a secondary battery can include a battery safety device, such as a protecting circuit module (PCM) controlling the charge or discharge of the battery or a secondary protective device replacing the PCM, and the battery safety device may be disposed in a battery pack.
  • PCM protecting circuit module
  • Such battery safety devices are typically connected to a positive electrode and a negative electrode to interrupt a current when the temperature of a battery is increases excessively or when the voltage of the battery increases quickly by overdischarge or overcharge of the battery, thus preventing accidents such as explosion of the battery.
  • EP 1 645 646 A1 discloses a current interrupting device in accordance with the preamble of claim 1.
  • JP H03 043925 discloses a current interrupting device including teminals having a main body and a thin portion, and a fuse coupled to the thin portions of the terminals.
  • JP 2004/71552 discloses a further example of a thermal fuse arrangement comprising sheet electrode strips that are less wide in a section contacted by the fuse than in a more distal position.
  • US 2005/0264394 discloses a protective device for preventing overcurrent and overvoltage comprising a low-melting metal element connected between the pair of electrodes to interrupt the current flowing between, the electrodes by fusion.
  • EP 1 357 569 discloses a thermal fuse comprising metal terminals coated with metal layers for contact with a fusible alloy.
  • Embodiments are therefore directed to a current interrupting device and a secondary battery including the same, which substantially overcome one or more problems caused by the limitations and disadvantages of the related art.
  • One embodiment provides a current interrupting device and a secondary battery including the same, which improve stability against overcharge and short circuits caused by high temperature.
  • Another embodiment provides a current interrupting device and a secondary battery including the same, which reduce manufacturing costs.
  • Another embodiment provides a current interrupting device and a secondary battery including the same, which are adapted for mass production conditions.
  • the first and second terminals according to embodiments may be formed of nickel, copper, iron, or an alloy including at least two thereof.
  • the first and second terminals may be formed of about 64% iron and about 36% nickel.
  • the fuse body includes a cover attached to the upper surfaces of the first and second terminals, and a base attached to the upper surfaces or the first and second terminals, and portions of the first and second terminals pass through the base and are connected to the fuse.
  • the fuse body may be formed of a resin that includes one of polyethylenenaphthalate, polyethylenterephthalate, polyamide, polyimide, polybutyleneterephthalate, polyphenyleneoxide, polyethylenesulfide, polysulfone, and a mixture thereof.
  • the fuse body may have a film shape.
  • the thickness of the thin portion may range from about 1/2 to about 3/4 the thickness of the main bodies of the first and second terminals.
  • the thickness of the first and second terminals may be about 0.4 mm, and the thickness of the thin portion may range from about 0.2 mm to about 0.3 mm.
  • the thickness of the thin portion may be about 0.25 mm.
  • the thickness of the first and second terminals may be about 0.3 mm, and the thickness of the thin portion may range from about 0.15 mm to about 0.25 mm.
  • the thickness of the thin portion may be about 0.2 mm.
  • the thin portion may have an area to allow the fuse body to be attached to the first and second terminals.
  • a secondary battery including: a can; an electrode assembly accommodated in the can; and a cap assembly coupled to an open upper end of the can to seal the can and function as an electrical connection medium to an outside, wherein the cap assembly includes a thermal fuse interrupting a current when a temperature is increased by overcharge and overdischarge of the electrode assembly.
  • the thermal fuse comprises a current interrupting device according to the invention.
  • the thermal fuse may be disposed in the can, and be electrically connected to the electrode assembly and the cap assembly.
  • the cap assembly may include a cap plate coupled to an upper portion of the can, a negative terminal inserted into the cap plate with a gasket therebetween, an insulating plate disposed on a lower surface of the cap plate, and a terminal plate disposed on a lower surface of the insulating plate and electrically connected to the negative terminal, and the terminal plate may be the thermal fuse.
  • the insulating plate may have a side provided with a stopper, and the terminal plate may have a side provided with a stopper indentation corresponding to the stopper.
  • a current interrupting device is a secondary protective device configured to interrupt a current according to temperature variations.
  • FIG. 2 illustrates a thermal fuse 10 which is not an embodiment of the present invention and which is used as the secondary protective device.
  • the thermal fuse 10 can include a first terminal 11, a second terminal 12, a fuse 13 connecting the first and second terminals 11 and 12 to each other, and fuse bodies 14 and 15 surrounding the outer appearance of the fuse 13 to seal the fuse 13.
  • the first and second terminals 11 and 12 include thin portions 11b and 12b to which the fuse 13 is connected.
  • the thin portions 11b and 12b have a smaller thickness than that of the other portions.
  • the first and second terminals 11 and 12 may be formed of one of nickel, copper, iron, and an alloy including at least two thereof.
  • the first and second terminals 11 and 12 may be formed of invar that includes about 64% iron and about 36% nickel and has a very small coefficient of thermal expansion.
  • the first terminal 11 can include a main body 11a and the thin portion 11b that is disposed at an end of the main body 11a and can have a smaller thickness than that of the main body 11a.
  • the fuse 13 may be connected to the thin portion 11b.
  • the first ends of the fuse bodies 14 and 15 are attached to the thin portion 11b.
  • the second terminal 12 includes a main body 12a and the thin portion 12b integrally formed with an end of the main body 11a.
  • the fuse 13 is connected to the thin portion 12b, and the second ends of the fuse bodies 14 and 15 attached to the thin portion 12b.
  • First ends of the fuse bodies 14 and 15 may be attached through heat welding to the upper and lower surfaces of the thin portions 11b and 12b provided to the first and second terminals 11 and 12, thus, facilitate attaching of the fuse bodies 14 and 15 to the thin portions 11b and 12b.
  • a welding material may be heated on both sides of an object (a first terminal or second terminal) during the heat welding process.
  • a thick object may not be suitable for heat welding as heat provided to the object may dissipate more quickly into other parts of the first and second terminals 11 and 12. Since the thin portions 11b and 12b can have a small thickness, the fuse bodies 14 and 15 may be effectively attached to the thin portions 11b and 12b to improve the sealing strength (sealing force).
  • the thickness of the thin portions 11b and 12b can range from about 1/2 to about 3/4 the thickness of the first and second terminals 11 and 12.
  • the thin portions 11b and 12b may have a thickness ranging from about 0.2 mm to about 0.3 mm.
  • the attaching strength of the fuse bodies 14 and 15 may decrease.
  • the sealing performance of the fuse bodies 14 and 15 for the fuse 13 may be degraded.
  • the thin portions 11b and 12b of the first and second terminals 11 and 12, to which the fuse bodies 14 and 15 are attached should have a small thickness.
  • the thin portions 11b and 12b may have a thickness of about 0.25 mm.
  • the thin portions 11b and 12b may have a thickness ranging from about 0.15 mm to about 0.25 mm.
  • the thin portions 11 b and 12b may have a thickness of about 0.2 mm.
  • Test results of a thermal fuse having first and second terminals 11 and 12 with a thickness of 0.3 mm, and a test result of a thermal fuse having the first and second terminals 11 and 12 with a thickness of 0.4 mm are as follows.
  • a performance test of the thermal fuses was performed through a sealing test and a compression test.
  • the thin portions 11b and 12b of the first and second terminals 11 and 12 may have a length to just allow the fuse bodies 14 and 15 to be attached to the first and second terminals 11 and 12.
  • the first terminal 11 may be provided with a terminal hole 16, and the second terminal 12 may be provided with a stopper indentation 17 having an open side, which will be described in detail in the following embodiment relating to a secondary battery.
  • the fuse 13 may be formed of tin or lead, but the material thereof is not limited thereto.
  • an alloy including Sn, Bi, In, and Zn, or an alloy including Sn, In, and Zn, which is free from environmental pollution, may be used.
  • Flux (not shown) may be applied to the fuse 13.
  • the fuse 13 may have a melting point of 98 °C ⁇ 3 °C.
  • a battery including the current interrupting device according to the present embodiment may have an inner temperature of about 90 °C or greater during high rate discharges.
  • the fuse 13 may have an operation temperature of 98 °C ⁇ 3 °C.
  • the upper limit of the operation temperature of the fuse 13 may have a temperature that prevents explosion or burning of a secondary battery.
  • the fuse bodies 14 and 15 may also be referred to as a cover attached to the upper surfaces of the first and second terminals 11 and 12 and a base attached to the lower surfaces of the first and second terminals 11 and 12, respectively.
  • the upper surface of a first end of the first terminal 11, and the upper surface of a first end of the second terminal 12 may be provided with the cover 14.
  • the lower surface of the first end of the first terminal 11, and the lower surface of the first end of the second terminal 12 may be provided with the base 15.
  • the cover 14 and the base 15 may be attached through one of heat welding, supersonic welding, and laser irradiation.
  • first ends of the first and second terminals 11 and 12 may be sealed in the cover 14 and the base 15 and connected to the fuse 13.
  • the cover 14 and the base 15 may be formed of resin.
  • the cover 14 and the base 15 may be formed of one of polyethylenenaphthalate, polyethylenterephthalate, polyamide, polyimide, polybutyleneterephthalate, polyphenyleneoxide, polyethylenesulfide, polysulfone, and a mixture thereof.
  • Resin of the cover 14 and the base 15 may be formed as a film.
  • the cover 14 and the base 15 may be formed of an identical material or materials that are from each other.
  • the fuse 13 of the thermal fuse 10 melts and breaks. Accordingly, the electrical connection between the first terminal 11 and the second terminal 12 is cut to prevent burning and explosion due to an overcurrent.
  • thermal fuse 20 will now be described with reference to Figure 4 according to an embodiment of the invention.
  • the thermal fuse 20 includes a first terminal 21, a second terminal 22, a fuse 23 connecting the first and second terminals 21 and 22 to each other, and fuse bodies 24 and 25 surrounding the outer appearance of the fuse 23 to seal the fuse 23.
  • the first and second terminals 21 and 22 can include thin portions 21b and 22b to which the fuse 23 is connected.
  • the thin portions 21b and 22b have a smaller thickness than that of the other portions.
  • first and second terminals 21 and 22 and the fuse 23 may be partially the same as those of the fuse 10 discussed above a a description thereof will be omitted.
  • the first and second terminals 21 and 22 include main bodies 21 a and 22a, the thin portions 21 b and 22b are disposed at the first ends of the main bodies 21a and 22a. Bent portions 21c and 22c protruding from the thin portions 21b and 22b, respectively.
  • the fuse bodies 24 and 25 may be the same as those of the previously discussed fuse 10 in that a cover (also denoted by 24) is attached to the upper surfaces of the first and second terminals 21 and 22. However, a base (also denoted by 25), together with the cover 24, may also be attached to the upper surfaces of the first and second terminals 21 and 22. In this case, the bent portions 21c and 22c of the first and second terminals 21 and 22 pass through the base 25. The bent portions 21c and 22c passing through the base 25 are connected to each other through the fuse 23. Thus, the first and second terminals 21 and 22 are connected to each other through the fuse 23. The fuse 23 is sealed by the cover 24 and the base 25.
  • thermal fuse 20 Since operation of the thermal fuse 20 is the same as that of the thermal fuse 10, a description thereof will be omitted.
  • the secondary battery 100 includes a can 111 having an open upper end, an electrode assembly 112 disposed in the can 111 and a cap assembly 120 coupled to the open upper end of the can 111 to seal the can 111.
  • a thermal fuse 10 functions as a secondary protective device and is electrically connected to the electrode assembly 112 and the cap assembly 120.
  • the thermal fuse 10 is disposed in the can 111 in the embodiment shown in Figure 5 .
  • the can 111 is a prismatic type metal case having an inner space.
  • the electrode assembly 112 includes a positive electrode plate 113, a separator 114, and a negative electrode plate 115 that are stacked, or wound in a jelly roll shape. Although the electrode assembly 112 has a jelly roll shape in the illustrated embodiment, a stack type electrode assembly may be used.
  • a positive lead 116 and a negative lead 117 extend from the positive electrode plate 113 and the negative electrode plate 115, respectively.
  • the cap assembly 120 includes a cap plate 121 coupled to the upper portion of the can 111, a negative terminal 123 inserted into the cap plate 121 with a gasket 122 therebetween, an insulating plate 124 disposed on the lower surface of the cap plate 121, and a terminal plate disposed on the lower surface of the insulating plate 124 and electrically connected to the negative terminal 123.
  • the cap plate 121 may be provided with an electrolyte injection hole 125 providing a passage through which electrolyte is injected into the can 111.
  • the electrolyte injection hole 125 may be sealed by a ball 126 after electrolyte is injected into the can 111.
  • the positive lead 116 may be directly connected to the lower surface of the cap plate 121, and the negative lead 117 is electrically connected to the negative terminal 123 through the terminal plate.
  • An insulating case 127 for insulating the electrode assembly 112 from the cap assembly 120 is disposed on the upper portion of the electrode assembly 112 in the can 111.
  • the thermal fuse 10 may be used as the terminal plate.
  • the thermal fuse 10 is disposed in the can 111, and electrically connected to the negative lead 117.
  • Stoppers 121 a are disposed on the lower surface of the cap plate 121. Both ends of the insulating plate 124 disposed on the lower surface of the cap plate 121 are provided with stopper indentations 124a to which the stoppers 121 a are fitted and fixed. This can prevent the insulating plate 124 from rotating relative to the cap plate 121.
  • a stopper 124b is disposed on a first side of the lower surface of the insulating plate 124.
  • the stopper indentation 17 is disposed on a first side of the thermal fuse 10 disposed on the lower surface of the insulating plate 124.
  • the stopper indentation 17 is fitted into the stopper 124b, so that the first side of the thermal fuse 10 is fixed to the insulating plate 124. This can prevent the thermal fuse 10 from rotating relative to the insulating plate 124.
  • the negative terminal 123 passes through terminal holes respectively of the cap plate 121, the insulating plate 124 and the thermal fuse 10, and may be fixed through a spinning process. When the spinning process is performed, the insulating plate 124 may not rotate relative to the cap plate 121. Furthermore, the thermal fuse 10 may not rotate relative to the insulating plate 124.
  • the secondary battery configured as described above includes the thermal fuse 10 which functions as a secondary protective device sensing excessive temperature increase due to overdischarge or overcharge.
  • the thermal fuse 10 may be disposed within the can 111 in the secondary battery.
  • the thermal fuse 10, disposed on the lower surface of the cap plate 121, can function as a terminal plate.
  • the thermal fuse 10 disposed in the can 111 may be adjacent to the electrode assembly 112, and electrically connected to the negative lead 117, thus sensing excessive temperature increase in the secondary battery and interrupting a current.
  • the current interrupting device and the secondary battery can provide secure stability against overcharge and short circuits caused by high temperatures. and reduce manufacturing costs, and may be adapted for mass production conditions.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Combustion & Propulsion (AREA)
  • Connection Of Batteries Or Terminals (AREA)
  • Fuses (AREA)
  • Sealing Battery Cases Or Jackets (AREA)
EP10251639.0A 2009-10-01 2010-09-23 Current interrupting device and secondary battery including current interrupting device Active EP2306485B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020090094012A KR101094039B1 (ko) 2009-10-01 2009-10-01 전류차단소자 및 이를 구비한 이차 전지

Publications (2)

Publication Number Publication Date
EP2306485A1 EP2306485A1 (en) 2011-04-06
EP2306485B1 true EP2306485B1 (en) 2016-07-27

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EP10251639.0A Active EP2306485B1 (en) 2009-10-01 2010-09-23 Current interrupting device and secondary battery including current interrupting device

Country Status (5)

Country Link
US (1) US8741453B2 (zh)
EP (1) EP2306485B1 (zh)
JP (1) JP5319596B2 (zh)
KR (1) KR101094039B1 (zh)
CN (1) CN102035186B (zh)

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KR101264534B1 (ko) 2011-07-12 2013-05-14 로베르트 보쉬 게엠베하 퓨즈부를 구비한 이차 전지
DE102012205021A1 (de) * 2012-03-28 2013-10-02 Robert Bosch Gmbh Zellverbinder für ein Batteriesystem oder für eine Batteriezelle eines elektrischen Energiespeichers, Batterie und Kraftfahrzeug
KR102096067B1 (ko) * 2013-01-31 2020-04-01 삼성에스디아이 주식회사 배터리 팩
KR101688480B1 (ko) 2013-03-06 2016-12-21 삼성에스디아이 주식회사 이차전지
KR101693288B1 (ko) * 2013-04-17 2017-01-05 삼성에스디아이 주식회사 퓨즈를 갖는 이차 전지
US9660249B2 (en) * 2013-10-01 2017-05-23 Samsung Sdi Co., Ltd. Rechargeable battery having a fuse
KR101671486B1 (ko) * 2013-11-11 2016-11-01 주식회사 엘지화학 퓨즈가 구비된 전극리드를 포함하는 이차전지
KR102172843B1 (ko) * 2014-03-20 2020-11-02 삼성에스디아이 주식회사 이차 전지
KR102303568B1 (ko) * 2014-08-08 2021-09-17 삼성에스디아이 주식회사 퓨즈를 갖는 이차 전지
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KR102320437B1 (ko) 2015-03-03 2021-11-01 삼성에스디아이 주식회사 플렉서블 이차 전지
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CN206250272U (zh) 2016-12-02 2017-06-13 宁德时代新能源科技股份有限公司 二次电池
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CN109273784B (zh) * 2018-09-24 2020-09-25 重庆交通大学 防电池过充的保护装置
KR20220023504A (ko) * 2020-08-21 2022-03-02 주식회사 엘지에너지솔루션 리무버블 퓨즈 어셈블리를 구비한 배터리 모듈 및 이를 포함하는 배터리 팩

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US20110081560A1 (en) 2011-04-07
CN102035186B (zh) 2014-11-12
KR101094039B1 (ko) 2011-12-19
US8741453B2 (en) 2014-06-03
EP2306485A1 (en) 2011-04-06
JP2011077023A (ja) 2011-04-14
CN102035186A (zh) 2011-04-27
KR20110036381A (ko) 2011-04-07
JP5319596B2 (ja) 2013-10-16

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